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Coronary Angioplasty in Patients with Previous Coronary Artery Bypass Grafting

Department of Cardiology, University of Göttingen, Germany

Arnd Buchwald

Department of Cardiology, University of Göttingen, Germany

Volker Wiegand

Department of Cardiology, University of Göttingen, Germany

Heinrich Kreuzer

Department of Cardiology, University of Göttingen, Germany

Between 1982 and 1990, in 134 patients with prior coronary artery bypass grafting and recurrent angina, repeat coronary angiography and balloon angioplasty of stenoses in grafts or native arteries were attempted. Mean age of grafts was 45.6 months, range three days to twelve years. At the time of angioplasty, 6 patients had one-vessel-disease, 33 had two-vessel-disease, and 95 had three-vessel-disease. A total of 182 lesions were dilated: 55 venous grafts, 3 internal mammary artery grafts, and 124 native vessels. Forty-nine of 55 (89%) venous grafts could be successfully dilated, and in 3 internal mammary artery grafts, a stenosis reduction > 50% was achieved. In 65 of 88 (74%) grafted native arteries, dilation success was achieved. Twenty-seven of 36 (75%) patients with prior bypass surgery to other arteries had successful angioplasty of nongrafted native arteries. Three patients underwent emergency bypass surgery after dissection and acute occlusion: one of them died in cardiogenic shock secondary to acute myocardial infarction. The angiographic success rate in grafts was slightly higher than in native arteries (90% vs 74%).

These data indicate that percutaneous transluminal coronary angioplasty in patients after bypass surgery is possible at a low risk (3%) and constitutes an effective therapy in symptomatic patients.

Angiology, Vol. 43, No. 8, 653-660 (1992)
DOI: 10.1177/000331979204300805


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